Jet



Feb. 3, 1942.

Filed C. E. HElL 'JET ' INVENTOR,

.C14 m. E. HEM` *MMM HIS A TTORNEYS Patented F eb. 3, 1942 UNITED STATcan E. Heil, Lakewoioa, ohio Application August 1, 1940, serialNojs'iejasi f' f 1 Claim.

` This invention is an improvement in jets or nozzles and relates moreparticularly to articles JET of this class which are used to injectsteam, air,

gas or other fluid into a chemical solution.

It is one of the objects of my invention to construct a jet forinjecting steam, air, gas, or

other uids into a chemical solution in which of which it is made, willnot set up an electrolytic potential in use and consequently is freefrom corrosive action due to such potentials.

Another object is to construct a jet of the above named character whichis economical to manufacture, highly resistant to erosion and chemicalreaction, is easy to install and operate, and possesses longer usefullife than similar devices now in use.

Other objects and advantages of my invention will become more apparentfrom the following description of two embodiments of my invention,reference being made to the accompanying drawing in which like referencecharacters are employed to designate like parts throughout the same.

In the drawing:

Figure 1 is a side view of one embodiment of my invention shown asapplied in use;

Figure 2 is a front elevation of the device shown in Figure 1;

Figure 3 is a vertical section through a jet embodying my invention; and

Figure 4 illustrates a modified form of the present invention and showsa type ofv nozzle embodied in a pipe section at spaced intervals, and inwhich each nozzle is provided with a single orifice.

It is the practice at the present time in pickling metal stock to employa pickling tank having a chemical solution therein in which the metal isimmersed for a predetermined time. It is customary to agitate thepickling solution and to heat it to a predetermined temperature byinjecting steam or other fluid under pressure below the surface of thesolution. This is done by means of jets or nozzles conveniently locatedin the walls of the tank or suspended within the tank1so,that the,injected fluid will be delivered below' the level of tl solution.Many'diiiculties have arisen with present methods tand apparatus foraccomplishing these results, 'and `it is-well known'that it is necessaryto replace corroded and worn out nozzles frequently. This results inloss oftime and is rather'expensive.

According to my invention I have elimi these disadvantages by providinga jet and' nozzle which need not be discarded after short use, but whichis possessed of an extremely long useful life.

Referring now more particularly to the accompanying drawing, I haveshown one form of the invention in Figures l, 2, and 3. In thisembodiment a section of the tank is indicated at l, while my improvedjet 2 is shown immersed in the pickling solution 3.

The jet is illustrated in detail in Figure 3 and comprises a pipesection 2 curved at its base and terminating in an enlarged open end 4.The material of the pipe section, and particularly that portion which isintended to be immersed in the pickling solution, consists of a ductile,chemical resisting metal, such as lead or tellurium bearing lead metal.Other materials, such as copper, tin, chromium nickel steels, nickel orthe commercial metal known as Monel metal may be used.

In further carrying out my invention, I provide a nozzle member 5preferably in the form of a perforated disk or plate which is fittedwithin the open enlarged end of the pipe. The nozzle member or insert 5may be secured in place in the pipe in any desirable manner. One methodis to cast or mold the pipe section around the member 5 which has itsperipheral wall grooved as at 5'. In this manner, the pipe material willenter the groove and overlie the outer faces of the member 5 asindicated in Figure 3 to form a locking connection between the members.Another method of securing the member 5 in place is to provide it withthreads engageable with threads formed within the mouth of the pipe, orthe member 5 may be retained in place by means of a retaining ring orcap. Other methods ofassembling the parts may be employed if desired.

These nozzle members 5 are formed of a nonmetallic material. I havefound carbon or graphite to be highly desirable and either may betreated or impregnated to reduce porosity. The nozzle member 5 may be inthe form of a plate having one or more orifices 6 communicating with theinternal bore of the pipe to convey the air,

listed* steam or other fluid into direct contact with the picklingsolution in the tank. Other materials, such as red ceramic clay ormachined natural minerals having chemical resistant qualities may beused in place of graphite or carbon.

In Figure 4, I have illustrated a modified form of the invention, inwhich I have provided a series of jets or nozzles 1 of the single oricetype arranged along a pipe section 8, the single orifice 9 in eachnozzle extending transversely of the pipe axis. In this form of theinvention the nonmetallic nozzle members 'l are enclosed and retained inthe recess I0 by means of the retaining members I I formed in the pipe,the shanks of the members 1 extending into the openings I2 in the pipeas indicated.

While my invention has been described as being particularly useful inintroducing steam, air, gases or other fluids into a pickling tank toheat and agitate the solution within the tank, it is equally eective anduseful in injecting chemical gases and liquids into solutions forthepurpose ofl effecting ,chemical reactions.

In either use, it will be seen from the above description of theconstruction and operation of my invention, that I have made a distinctadvance in the art and have enabled many of the diflicultiesheretoforeencoun-tered to be effectively overcome.

Jets made in accordance with the present invention have the distanctadvantage of superior mechanical strength and ductility in the pipe asWell as chemical resistant properties in the orifice insert, the Wholecomposite structure representing 10W initial cost of manufacture and lowsubsequent maintenance or replacement costs.

Various changes may be made in the details of construction or thearrangement of parts of my invention Without departing from the spiritof the invention or the scope of the appended claim.

I claim:

Means for introducing a fluid such as steam into an active chemicalsolution, said means comprising a conduit section of ductile metal andan integral discharge nozzle communicating With the conduit, said nozzlecomprising a frustroconical section having an enlarged opening at itsbase or discharge end and having an annular locking recess in its innerWall adjacent its open end, and an orice insert comprising a memberhaving an annular wall for cooperating locking engagement with thelocking recess in the nozzle, said insert being formed in its entiretyof a graphitic carbon material.

CARL E. HEIL.

